Phone etiquette is important for effective business communications. Some tips include answering within 2 rings with a friendly greeting, asking for the caller's name, speaking clearly at a moderate volume, asking permission before putting a caller on hold and thanking them after, directly transferring calls without using an operator, and ensuring all messages include the caller's name, time of call, topic, and best number to return to. Proper phone etiquette creates a good impression and fully addresses callers' needs.